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-   -   Lockheed Jetstar (https://www.pprune.org/aviation-history-nostalgia/651844-lockheed-jetstar.html)

treadigraph 17th Mar 2023 14:52


Originally Posted by SQUAWKIDENT (Post 11403936)
This may be a silly question but I'll ask anyway..

What's the advantage (if any) of having a moving vertical fin? And are there any other aircraft with a similar system?

Dunno about advantages but as mentioned above the Mooney had a similar system. I noticed one parked at Denham once with the elevator trim presumably wound nose up - the fin was leaning forward a little and I thought it must have been damaged - hadn't realised the whole tail unit moved.

SQUAWKIDENT 17th Mar 2023 15:39

Ah missed that bit about the Mooney. That would explain the strange looking upright tail-fin. Ta for the info!

horatio_b 17th Mar 2023 15:48

Nigel Mansell operated Jetstar N500NM (later carried VR-CNM) between 1993-1995. This aircraft, c/n 5229, is now preserved at the Pacific Coast Air Museum, Santa Rosa CA.

chevvron 17th Mar 2023 17:58


Originally Posted by horatio_b (Post 11403972)
Nigel Mansell operated Jetstar N500NM (later carried VR-CNM) between 1993-1995. This aircraft, c/n 5229, is now preserved at the Pacific Coast Air Museum, Santa Rosa CA.

I already mentioned that.

Liffy 1M 17th Mar 2023 17:59


Originally Posted by treadigraph (Post 11403930)

This may be SU-DAG, which is ex-Luftwaffe and was reported dumped at Cairo.

I don't know of any Arafat connection but he did fly on another JetStar, 7T-VHP, later registered HB-JGK. This was stored at Geneva for some years before being broken up, the fuselage ending up at Kemble.

Consol 17th Mar 2023 19:00

N971AS, based in Shannon for many years. 1st biz jet I ever set foot in (working but not flying). Impressive looking aircraft.

Pypard 17th Mar 2023 20:15


Originally Posted by treadigraph (Post 11403805)
Re the F-86/T-39 wing connection (which is correct as I understood it),

It's not correct: there is some commonality with the F-100.

Noyade 17th Mar 2023 21:19

https://cimg0.ibsrv.net/gimg/pprune....10423e7288.jpg

(Air Enthusiast July 1976)

Noyade 17th Mar 2023 22:33


Originally Posted by treadigraph (Post 11403805)
do the Mystere fighter and Mystere/Falcon 20 share the same basic wing?

G'day Treaders!
Which Mystere fighter? I went with the Super Mystere B2 below.
I don't see the same basic wing shape.
Even the wing specs in Jane's are very different.


https://cimg9.ibsrv.net/gimg/pprune....fc1e6e0f1c.jpg





treadigraph 18th Mar 2023 08:18

I was thinking Mystere IV, which is the variant I'm most familiar with - quite a few scattered around the UK - one would think that if the Mystere 20 and Sabreliner shared names with their manufacturer's fighter products that there would be some common design elements and with the wing being a fundamental part of the aerodynamics...

longer ron 18th Mar 2023 08:41

'Based On' ;)

https://i.imgur.com/ZmmrwNG.jpg?1

https://i.imgur.com/kzD5Sgz.png

alf5071h 18th Mar 2023 08:50

DH 125 Jet Dragon - DH Venom wing ?

DaveReidUK 18th Mar 2023 09:21


Originally Posted by Noyade (Post 11404151)
G'day Treaders!
Which Mystere fighter? I went with the Super Mystere B2 below.
I don't see the same basic wing shape.
Even the wing specs in Jane's are very different.

The supersonic Super Mystère had a very different wing from its subsonic predecessors, as one might expect.

washoutt 18th Mar 2023 09:41

I'm still not clear on the moving fin of the Jetstar. Does the whole fin turn atound a vertical axis to function as a huge rudder? What does the construction look like, has anybody a drawing or picture of this intriguing characteristic? Thanks for any info.

spekesoftly 18th Mar 2023 10:15


Originally Posted by washoutt (Post 11404311)
I'm still not clear on the moving fin of the Jetstar. Does the whole fin turn atound a vertical axis to function as a huge rudder? What does the construction look like, has anybody a drawing or picture of this intriguing characteristic? Thanks for any info.

I get the impression that the Jetstar's fin can be rotated in the fore and aft axis to adjust the angle of incidence of the tailplane which is attached to the fin. The rudder and elevator appear to be conventional.

I could be completely wrong, and very happy to be corrected.



Downwind.Maddl-Land 18th Mar 2023 10:16

Was fortunate enough to 'work' JetStars and Sabreliners - in their mil VC-140 and T-39 guises - into/out of RAF Northolt on many occasions in the mid-70s. As 32 Sqn operated 2 x HS-125-600s, the noise issue wasn't considered an embarrassment in comparison!

Wrt Dassault Falcons, yes the wing was the same as the Mystere's and was a primary reason that Cobham (now Draken) adopted the type for it's ECM training role as the hard points and necessary wiring runs were able to be used and enabled various pods to be fitted underwing 'relatively' easily.

longer ron 18th Mar 2023 10:21


Originally Posted by washoutt (Post 11404311)
I'm still not clear on the moving fin of the Jetstar. Does the whole fin turn atound a vertical axis to function as a huge rudder? What does the construction look like, has anybody a drawing or picture of this intriguing characteristic? Thanks for any info.

The Pitch Trim Actuator (56) pushes/pulls on the front spar of the Vert Stab which pivots the v stab fore/aft around rear spar attachment (57) and therefore inreases/decreases the tailplane/horiz stab angle of incidence.

https://i.imgur.com/ErEEZht.png

Less Hair 18th Mar 2023 10:22

The Paris Jet was closest to some military donor (Fouga Magister) it seems.
https://upload.wikimedia.org/wikiped...I_LeB_1967.jpg

pax britanica 18th Mar 2023 15:06

Less hair

I think the little Paris was perhaps the loudest ever per Kg aircraft built .Aside from the Magisters buttefly tail it was very simialr to the frencjh trainer in many ways .

treadigraph 18th Mar 2023 18:25

The Paris was based on the MS Fleuret which competed with the Magister for the FrAF jet trainer order.


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